zap-stream-flutter/lib/widgets/note_embed.dart

import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
import 'package:ndk/ndk.dart';
import 'package:zap_stream_flutter/rx_filter.dart';
import 'package:zap_stream_flutter/theme.dart';
import 'package:zap_stream_flutter/utils.dart';
import 'package:zap_stream_flutter/widgets/nostr_text.dart';
import 'package:zap_stream_flutter/widgets/pill.dart';
import 'package:zap_stream_flutter/widgets/profile.dart';

class NoteEmbedWidget extends StatelessWidget {
  final String link;

  const NoteEmbedWidget({super.key, required this.link});

  @override
  Widget build(BuildContext context) {
    final entity = decodeBech32ToTLVEntity(link);

    return RxFilter<Nip01Event>(
      Key("embeded-note:$link"),
      filters: [entity.toFilter()],
      builder: (context, data) {
        final note = data != null && data.isNotEmpty ? data.first : null;
        return PillWidget(
          onTap: () {
            if (note != null) {
              // redirect to the stream if its a live stream link
              if (note.kind == 30_311) {
                context.push("/e/$link", extra: StreamEvent(note));
                return;
              }
              showModalBottomSheet(
                context: context,
                builder: (context) {
                  return SingleChildScrollView(child: _NotePreview(note: note));
                },
              );
            }
          },
          color: LAYER_3,
          child: RichText(
            text: TextSpan(
              children: [
                WidgetSpan(child: Icon(Icons.link, size: 16)),
                TextSpan(
                  text: switch (entity.kind) {
                    30_023 => " Article by ",
                    30_311 => " Live Stream by ",
                    _ => " Note by ",
                  },
                ),
                if (note?.pubKey != null)
                  WidgetSpan(
                    alignment: PlaceholderAlignment.middle,
                    child: ProfileNameWidget.pubkey(switch (note!.kind) {
                      30_311 => StreamEvent(note).info.host,
                      _ => note.pubKey,
                    }, linkToProfile: false),
                  ),
              ],
            ),
          ),
        );
      },
    );
  }
}

class _NotePreview extends StatelessWidget {
  final Nip01Event note;

  const _NotePreview({required this.note});

  @override
  Widget build(BuildContext context) {
    return Container(
      padding: EdgeInsets.all(10),
      decoration: BoxDecoration(color: LAYER_1, borderRadius: DEFAULT_BR),
      child: Column(
        spacing: 8,
        children: [
          ProfileWidget.pubkey(note.pubKey),
          NoteText(event: note, embedMedia: true),
        ],
      ),
    );
  }
}